History of slavery in America

<img width=“750” height=“662” src=“https://i0.wp.com/flowingdata.com/wp-content/uploads/2019/08/Slavery-in-America.png?fit=750%2C662&ssl=1" class=“attachment-medium size-medium wp-post-image” alt=“” srcset=“https://i0.wp.com/flowingdata.com/wp-content/uploads/2019/08/Slavery-in-America.png?w=1290&ssl=1 1290w, https://i0.wp.com/flowingdata.com/wp-content/uploads/2019/08/Slavery-in-America.png?resize=210%2C185&ssl=1 210w, https://i0.wp.com/flowingdata.com/wp-content/uploads/2019/08/Slavery-in-America.png?r …